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GBase 8c教程(六)数据库集群卸载——UNINSTALL指令

程序员文章站 2022-03-04 22:24:37
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一、语法规则

使用UNINSTALL指令可以实现数据库集群的卸载,语法如下:

gha_ctl UNINSTALL [-f] [-c cluster] -l dcslist

参数说明:

  • [-c cluster]表示集群名称,为可选字段,缺省默认值gbase8c;
  • [-f]表示清理安装目录,为可选字段,缺省保留目录文件夹;
  • dcslist为DCS地址,一般情况下可以只列出一个节点地址,其他节点会自动同步消息。为了保证高可用,也可以列出所有节点地址;

二、操作示例

1、卸载集群:

[[email protected] deploy]$ /home/gbase/deploy/bin/gha_ctl uninstall -f -l http://192.168.142.211:2379,http://192.168.142.212:2379,http://192.168.142.213:2379

返回操作成功信息:

{
    "ret":0,
    "msg":"Success"
}

2、查询数据库集群状态:

[[email protected] deploy]$ /home/gbase/deploy/bin/gha_ctl monitor all -l http://192.168.142.211:2379,http://192.168.142.212:2379,http://192.168.142.213:2379

返回没有集群信息:

{
    "cluster":"gbase8c",
    "gtm":[],
    "coordinator":[],
    "datanode":{},
    "dcs":{
        "cluster_state":"healthy",
        "members":[
            {
                "url":"http://192.168.142.213:2379",
                "id":"62f9a805ba818264",
                "name":"node_2",
                "state":"healthy",
                "isLeader":true
            },
            {
                "url":"http://192.168.142.211:2379",
                "id":"8ea592db62fb7d92",
                "name":"node_0",
                "state":"healthy",
                "isLeader":false
            },
            {
                "url":"http://192.168.142.212:2379",
                "id":"fbc0fc018ba512fa",
                "name":"node_1",
                "state":"healthy",
                "isLeader":false
            }
        ]
    }
}

3、删除DCS工具:
语法:gha_ctl DESTROY dcs -l dcslist
操作指令:

[[email protected] deploy]$ /home/gbase/deploy/bin/gha_ctl destroy dcs -l http://192.168.142.211:2379,http://192.168.142.212:2379,http://192.168.142.213:2379

返回操作成功信息:

{
    "ret":0,
    "msg":"Success"
}

数据库集群删除完成!